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Finding the Fourth Proportional to 61,455.72, 92,219.37 and 25,914.81

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Solution

The fourth proportional to 61,455.72, 92,219.37 and 25,914.81 is: 38,887.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,455.72 : 92,219.37 = 25,914.81 : x
  2. Step 2: Convert to fraction form
    61,455.72/92,219.37 = 25,914.81/x
  3. Step 3: Cross multiply
    61,455.72x = 92,219.37 × 25,914.81
  4. Step 4: Simplify right side
    61,455.72x = 2,389,847,451.87
  5. Step 5: Solve for x
    x = 2,389,847,451.87/61,455.72
  6. Step 6: Final answer
    x = 38,887.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.